Problem Installing Ultrix on DECstation 2100

Steven M Jones classiccmp at
Sat Dec 13 18:23:20 CST 2014

On 12/13/2014 04:17 PM, Robert Jarratt wrote:
> After choosing the type of installation (basic or advanced) it tries to
> offer the system disk selection. However, it keeps failing because it is
> detecting the CD-ROM drive and saying it has an invalid block size. I can
> hear it spin up the hard disk that I want to install on, so it should be
> finding a suitable hard disk, but it looks like it keeps choking on the
> CD-ROM drive.

What SCSI IDs are you using for all these devices? Off the top of my
head I don't recall what DEC's convention was for the CD (I'd guess 6),
but I wonder if the fairly simple-minded installer thinks the ID you've
used for the CD is supposed to be used for HDD...

Good luck,

More information about the cctech mailing list